Context Window

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GPT-4o-mini Search Preview vs Ministral 3 3b Instruct 2512

This page is context-first: how much text each model can take in one request. Full specs adds capabilities and limits; the pricing matrix below is only about $/million tokens from hosts that list both models.

Openai

Model

GPT-4o-mini Search Preview

Image inputTool calling

Context window

128K

128,000 tokens · ~96K words

Model page
Mistral

Model

Ministral 3 3b Instruct 2512

Context window

256K

256,000 tokens · ~192K words

Model page

Context window · side by side

Bar length is relative to the larger of the two windows (100% = max of this pair). This is not pricing.

GPT-4o-mini Search Preview128K
Ministral 3 3b Instruct 2512256K

Ministral 3 3b Instruct 2512 has about 2× the context window of the other in this pair.

Token calculator →Memory savings →

Ministral 3 3b Instruct 2512 has 100% more context capacity (256K vs 128K tokens). Ministral 3 3b Instruct 2512 is 33% cheaper on input.

Quick verdicts

Short takeaways — validate with your own workloads.

  • Long document processing

    Use Ministral 3 3b Instruct 2512. Its 256K context fits entire documents without chunking (vs 128K).

  • RAG / high-volume retrieval

    Use Ministral 3 3b Instruct 2512. Input tokens are 33% cheaper — critical when sending large retrieved contexts.

  • Long output (reports, code files)

    Use Ministral 3 3b Instruct 2512. Its 256K max output lets you generate complete artifacts in one request.

Full specs

Context, output, capabilities, and dates. Green highlights the favorable value where we compute a winner.

SpecGPT-4o-mini Search PreviewMinistral 3 3b Instruct 2512
Context window128,000 tokens (128K)256,000 tokens (256K)
Max output tokens16,384 tokens (16K)256,000 tokens (256K)
Speed tierFastFast
VisionYesNo
Function callingYesNo
Extended thinkingNoNo
Prompt cachingYesNo
Batch APIYesNo
Release dateMar 2025N/A

Pricing matrix

Dollar rates only: hosts that list both models, per 1M tokens. For how much text fits, use the context section above — not this table.

ProviderGPT-4o-mini Search Preview inGPT-4o-mini Search Preview outMinistral 3 3b Instruct 2512 inMinistral 3 3b Instruct 2512 out
Fireworks——$0.100/M$0.100/M
Openai$0.150/M$0.600/M——

Frequently asked questions

Ministral 3 3b Instruct 2512 has a larger context window: 256K tokens vs 128K. For long documents, large codebases, or extended agent sessions, the larger context window reduces the need to chunk inputs or summarize history.

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Mem0 gives your AI long-term memory so you stop re-sending context on every call. That means you can use a smaller, faster, cheaper model — and still get better answers.

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Example: a multi-turn chat session

Without Mem0~128K tokens sent
Full history
Repeated info
Old context
With Mem0~20K tokens sent
Key memories
Current turn

80% less to send — works with any model